Liam conducted an experiment to investigate whether phonological similarity (words that sound similar) affects short-term memory recall.
He recruited his participants from a Year 12 Psychology class. Liam created two word lists, each consisting of ten target words.
Both lists were read aloud to all participants, and immediately afterwards, they had to recall as many of the words as they could.
The results of Liam's experiment are shown in Table 1.
| Participant | Number of words recalled correctly from List A | Number of words recalled correctly from List B |
|---|---|---|
| 1 | 5 | 8 |
| 2 | 4 | 7 |
| 3 | 6 | 9 |
| 4 | 4 | 7 |
| 5 | 5 | 8 |
| 6 | 4 | 7 |
| 7 | 5 | 8 |
| 8 | 4 | 6 |
Calculate the mean number of words recalled correctly from List A.
You must give your answer to one decimal place.
Practise Edexcel A Level Psychology Research methods and skills with exam-style questions for A Level Psychology. 657 questions covering Research methods and skills, matched to the Edexcel A Level Psychology (9PS0) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.
